1. Why Hyundai and Kia Owners Benefit from Permanent Ceramic Protection

Hyundai Motor Group is one of the largest automotive groups in the world. The combined Hyundai and Kia brands sold over 1.5 million vehicles in the US in 2025 alone - the Sonata, Elantra, Tucson, Santa Fe, Palisade, Optima, K5, Sorento, Telluride, Sportage, Forte, and a growing lineup of Genesis luxury vehicles share platforms, engines, and engineering across the two brands. Hyundai and Kia have transformed themselves over the past 15 years from value brands into legitimate competitors with Honda, Toyota, and the Detroit 3 in nearly every segment.

Hyundai and Kia owners have a particular relationship with engine reliability. The Theta II 2.4L recall era (which we'll discuss in detail below) created a generation of owners who research preventive maintenance carefully. Many Hyundai and Kia drivers have either experienced engine issues themselves or know someone who has - and the modern owner base is more attentive to engine maintenance than the typical mainstream buyer.

That awareness aligns directly with Cerma's value proposition: a one-time investment that protects the engine permanently. The same Hyundai owner who diligently follows the Recommended Maintenance Schedule and keeps service records religiously to protect their warranty understands engine maintenance as the long game. Cerma fits naturally into that mindset.

Hyundai and Kia vehicles also have specific engineering characteristics that make Cerma especially relevant:

• The modern Smartstream family is dominated by turbocharged engines. The G2.5 T-GDi powers the Sonata, Sorento, Telluride, Palisade Hybrid, K5, Santa Fe, and Santa Cruz. The G1.5 T-GDi powers the Elantra and Tucson. The G1.6 T-GDi (with hybrid integration) powers the Tucson Hybrid, Sportage Hybrid, and Sonata Hybrid. Turbo bearings at 50,000-200,000+ RPM are exactly the wear surface Cerma's bonded ceramic protects best.
• Direct fuel injection on virtually all current production engines. Direct injection has specific cylinder wall wear patterns that Cerma's ceramic addresses, and the fuel impingement on cylinder walls during cold starts is particularly hard on the metal surfaces.
• Hyundai and Kia have the longest mainstream powertrain warranty in the US - 10 years/100,000 miles. Many owners plan to keep their vehicles to the full warranty mileage and beyond. Cerma applied early protects the engine across the entire warranty period and decades after.
• Genesis luxury vehicles use higher-output Smartstream variants. The G80, GV80, GV70, and G70 use the 3.5L Smartstream twin-turbo V6 (375 hp) or the 2.5L Smartstream T-GDi (300 hp) - high-output turbocharged engines that benefit substantially from permanent ceramic protection.
• N performance models drive the enthusiast aftermarket. The Elantra N, Kona N, and Veloster N use a high-output version of the Theta II turbo (275-280 hp). The Hyundai N audience is one of the most engaged enthusiast bases in the Korean vehicle community.

Cerma STM-3 is fundamentally different from any oil or additive. The active ingredient is Nano Silicon Carbide (SiC) - actual ceramic particles that bond mechanically to engine metal surfaces over the first 3,000 to 5,000 miles of driving. Once bonded, the ceramic creates a sacrificial wear layer between metal-on-metal contact points. Friction drops by up to 90 percent. Wear slows dramatically. And because the bond is mechanical, the ceramic survives every oil change.

For more on the underlying chemistry, see our complete guide to Nano Silicon Carbide. To understand the EPA ETV certification that backs Cerma's performance claims, see our guide to EPA Environmental Technology Verification.

2. Which Cerma Product for Your Hyundai/Kia Engine

Whether you're treating a 2026 Palisade with the new Smartstream G3.5 V6 or a 2012 Sonata with the recalled Theta II 2.4L (post-replacement), the Cerma application is the same: 2oz gas treatment ($105.60), one bottle, one-time application.

Current 2026 Hyundai/Kia/Genesis gas engines:

Historical Hyundai/Kia engines (still on the road):

3. Honest Disclosure: The Theta II 2.4L Recall (1.7+ Million Vehicles)

This is one of the most important sections in this guide because the Theta II 2.4L engine recall is one of the most-discussed automotive reliability issues in the entire US market. If you own or are considering a 2010-2019 Hyundai or Kia with a 2.4L engine, this section is essential reading.

What happened with the Theta II recall

The Theta II 2.4L engine - used in millions of Hyundai and Kia vehicles between 2010 and 2019 - had a documented manufacturing defect at the engine crankshaft. During the manufacturing process, a mechanical "deburring" procedure was used to remove metallic machining debris from the crankshaft. The deburring process left metallic debris around the engine crankshaft, which interfered with oil flow through the connecting rod bearings.

The result was accelerated wear on the connecting rod bearings, which over time led to:

• Abnormal engine knocking sounds
• Stalling and rough running
• Oil pressure warning lights
• Eventually, complete engine seizure (often without warning)

The recall timeline and scope

In September 2015, Hyundai recalled approximately 470,000 model year 2011-2012 Sonatas equipped with 2.0L and 2.4L Theta II engines. By April 2017, the recall was expanded to include another 572,000 vehicles, including 2013-2014 Hyundai Sonata and Santa Fe Sport vehicles.

Around the same time, Kia recalled more than 618,000 model year 2011-2014 Kia Optima, 2012-2014 Sorento, and 2011-2013 Sportage vehicles, citing similar Theta engine bearing wear issues. On December 1, 2020, Hyundai and Kia recalled an additional 423,000 vehicles equipped with the 2.4L Theta II MPI variant - the first recall to include the MPi (multi-port injection) version of the engine. Affected vehicles included the 2011-2013 Hyundai Sonata Hybrid, 2012 Hyundai Santa Fe, 2012-2013 Kia Sorento, 2011-2013 Kia Optima Hybrid, 2012-2013 Kia Forte and Forte Koup, and the 2012 Kia Sportage 2.4L.

In total, more than 1.7 million vehicles were affected by Theta II recalls in the United States. Hyundai and Kia issued an extended warranty (10 years / 120,000 miles from the original purchase date) to cover engine replacement on affected vehicles, and many owners had their engines replaced under the program.

Cerma cannot fix Theta II recall damage

Let's be direct about what Cerma can and cannot do for Theta II owners:

• Cerma cannot reverse damaged connecting rod bearings. The recall mechanism is metallurgical contamination causing physical bearing damage - not friction wear.
• Cerma cannot remove manufacturing debris from oil passages. Cerma is added to oil and bonds to engine metal surfaces - it doesn't dissolve or remove existing contamination.
• Cerma cannot prevent failure on engines with already-damaged internals. If the bearings are already worn, the path to failure is mechanical and progressive.
• If your Theta II 2.4L is currently making knocking sounds, has stalling issues, or shows oil pressure warning lights - get it evaluated by a Hyundai or Kia dealer immediately. Many affected engines still qualify for replacement under the extended warranty program.

Where Cerma DOES help Theta II owners

For two specific groups of Theta II owners, Cerma is excellent investment maintenance:

• Theta II owners with healthy engines that haven't shown recall symptoms. Some Theta II engines were built without the manufacturing debris issue and continue running normally. For these owners, Cerma applied early provides preventive friction reduction at all wear surfaces - bearings, cylinder walls, cam lobes, valvetrain, turbo bearings (on 2.0T variants).
• Theta II owners with replacement engines installed under the recall program. The replacement engines manufactured after Hyundai/Kia corrected the deburring process should be free of the original debris issue. For owners with a fresh replacement engine, Cerma applied during the first oil change is one of the best-leverage maintenance investments available - permanent friction protection on a brand-new engine for the next 200,000+ miles.

For Theta II 2.0L Turbo applications (Sonata 2.0T, Optima SX/SXL, Santa Fe Sport 2.0T, Genesis Coupe 2.0T) - which are similar architecture but were not subject to the same connecting rod bearing recall - Cerma is sound preventive maintenance like any other turbocharged engine. The turbo bearings spinning at high RPM particularly benefit from permanent ceramic protection.

4. Special Note: The Smartstream Engine Family

The Smartstream family is the modern Hyundai Motor Group engine architecture introduced in 2018, replacing earlier engine families across Hyundai, Kia, and Genesis vehicles. Smartstream represents Hyundai's significant engineering investment to address reliability concerns from the Theta II era and to position the brands competitively against Honda, Toyota, and other established manufacturers.

The Smartstream architecture

Smartstream is an all-aluminum engine family with several signature engineering features:

• Continuously Variable Valve Duration (CVVD). A Hyundai engineering breakthrough that varies not just the timing of valve events but the duration of valve opening - allowing the engine to optimize for power, efficiency, or emissions across the full RPM range.
• Dual port injectors per cylinder on MPI variants for improved fuel atomization.
• Integrated thermal management valve (ITM) replacing the conventional thermostat, providing more precise coolant temperature control.
• Both GDi and MPi systems on many variants to address carbon buildup concerns that plague pure direct-injection engines (the Smartstream G1.5 T-GDi, G2.5 T-GDi, and G3.5 V6 all use this dual-injection approach).
• Variable-geometry turbochargers on most T-GDi variants for improved low-RPM response.
• Mild-hybrid integration capability on certain variants for fuel economy improvements.

The current Smartstream lineup

• Smartstream G1.0 MPI / T-GDi - 3-cylinder, used in smaller global markets
• Smartstream G1.5 T-GDi (G4LH/G4LK/G4FS) - the volume small turbo, used in Elantra, Tucson, Kona, Forte, Venue
• Smartstream G1.6 T-GDi (with hybrid integration) - used in Tucson Hybrid, Sportage Hybrid, Sonata Hybrid, Niro
• Smartstream G2.0 - naturally-aspirated 2.0L (older applications)
• Smartstream G2.5 GDi (G4KN) - naturally-aspirated 2.5L, 191-198 hp, used in Sonata and K5 base
• Smartstream G2.5 T-GDi - turbocharged 2.5L (FWD: 277-300 hp; RWD for Genesis: 300 hp)
• Smartstream G3.5 V6 GDi (G6DT) - 290-300 hp NA V6 (current Palisade, Carnival)
• Smartstream G3.5 V6 Twin-Turbo - 375 hp twin-turbo V6 used in Genesis G80, GV80, GV70
• Smartstream G3.5 V6 MPi (G6DU) - 268 hp MPi V6 for some markets

Why Smartstream engines benefit from Cerma

The Smartstream family is engineered for efficiency and durability, but every Smartstream engine has the same wear surfaces as any other internal combustion engine - bearings, cylinder walls, cam lobes, turbo bearings (on T-GDi variants), and valvetrain components. Cerma's permanent ceramic bond at every wear surface complements Hyundai's Smartstream engineering with permanent friction reduction.

The CVVD valvetrain mechanism in particular benefits from Cerma. CVVD uses additional rocker arm assemblies and continuously variable mechanical actuators that operate constantly during driving - the kind of constantly-operating wear surfaces that Cerma's bonded ceramic protects best.

5. Special Note: Smartstream G2.5 T-GDi - The Volume Turbo

The Smartstream G2.5 T-GDi is the heart of the modern Hyundai/Kia performance and mainstream turbo lineup. It powers a remarkable cross-section of the Hyundai Motor Group portfolio:

• Hyundai applications: Sonata N Line, Santa Cruz, Santa Fe XRT, current Palisade applications, and several Genesis variants
• Kia applications: K5 GT, Sorento (current), and the new 2027 Telluride (which switched from the Lambda 3.8L V6 to the Smartstream G2.5 T-GDi as its base engine)
• Genesis applications: GV70 (base 2.5T), G80 (base 2.5T), older GV80

G2.5 T-GDi specifications

For SUV applications (FWD-based), the G2.5 T-GDi produces 277 hp at 6,000 RPM and 311 lb-ft of torque between 1,750 and 4,000 RPM with a 10.0:1 compression ratio. For sedan applications (also FWD-based), the engine produces 290-294 hp at 5,800 RPM with the same 311 lb-ft of torque between 1,650 and 4,000 RPM at a 10.5:1 compression ratio. The RWD-specific variant (used in Genesis applications) produces 300 hp at 6,000 RPM with the same 311 lb-ft of torque at a 10.5:1 compression ratio.

Engineering features that make the G2.5 T-GDi competitive with anything in its class include both GDi and MPi fuel injection (addressing carbon buildup), CVVD valvetrain, integrated thermal management, and sophisticated turbo control.

Why Cerma works particularly well on the G2.5 T-GDi

• Turbocharger bearing protection. The G2.5 T-GDi runs significant boost pressures (typically 13-16 psi) and the turbo bearings spin at extremely high RPM. Cerma's bonded ceramic protects bearings throughout the engine's life.
• Cold-start protection. Direct-injected turbo engines see significant fuel impingement on cylinder walls during cold starts. Cerma's mechanical bond provides protection from the very first revolution after restart - exactly when the protective oil film is thinnest.
• High-output cycling. SUV applications with the G2.5 T-GDi transition between cruising and full-throttle frequently. Each transition is a thermal cycle for the turbo and bearings. Cerma's permanent friction reduction directly addresses this.
• Genesis applications. Genesis luxury vehicles use the G2.5 T-GDi as the base engine - and the Genesis ownership demographic skews toward longer-term ownership where permanent ceramic protection has the most cumulative value.

6. Special Note: Smartstream G3.5 V6 and Lambda V6 History

The 3-row family SUV market is a critical segment for Hyundai Motor Group, and the V6 engines that power the Palisade, Telluride, and Carnival have been pivotal to those vehicles' success.

The Lambda V6 era (2008-2025)

For most of the past two decades, Hyundai's V6 engines have been members of the Lambda family. The Lambda 3.5L V6 was used in the older Genesis sedan, older Azera, Cadenza, older Santa Fe, and older Sorento. The Lambda 3.8L V6 (which produced 291 hp and 262 lb-ft in Palisade and Telluride applications) became the workhorse 3-row SUV engine from 2018 through 2025.

The Lambda 3.3L Twin-Turbo V6 (used in the Kia Stinger GT, Genesis G70, G80, GV80, and G90) produced 365-380 hp and built a strong reputation among performance buyers. The Lambda V6 family has been generally reliable over its production run - well-maintained Lambda engines routinely cross 200,000-300,000 miles.

The Smartstream G3.5 V6 transition (2020+)

Starting in 2020, Hyundai began transitioning from the Lambda V6 to the Smartstream G3.5 V6. The new engine debuted in the Kia Sorento, Kia Carnival, and Hyundai Santa Fe. By 2026, the Hyundai Palisade adopted the Smartstream G3.5 V6, replacing the Lambda 3.8L. The 2027 Kia Telluride, however, dropped V6 power entirely and switched to the Smartstream G2.5 T-GDi as its base engine.

The Smartstream G3.5 V6 GDi (G6DT) has a 12.3:1 compression ratio and produces 290-300 hp at 6,400 RPM with 262-265 lb-ft of torque at 5,000-5,200 RPM. The 2026 Palisade specifically lists 287 hp from this engine. The twin-turbo variant of the G3.5 V6 (used in Genesis G80, GV80, and GV70) produces 375 hp - making it one of the most powerful production V6s available in any mainstream vehicle.

Why Cerma is excellent for Hyundai/Kia V6 owners

The 3-row SUV demographic - Palisade, Telluride, Carnival owners - tends to be families who plan to keep their vehicles long-term. These vehicles often see hundreds of thousands of miles of family driving, road trips, and daily use. The one-time $105.60 Cerma application is small relative to:

• V6 timing chain repair on Lambda engines: $1,500-$3,000+ depending on extent
• V6 head gasket repair: $2,000-$3,500
• Complete V6 engine replacement (out of warranty): $6,000-$10,000+

For Lambda V6 owners specifically, Cerma applied during a regular oil change provides permanent friction protection at every wear surface - timing chain components, cam lobes, bearings, cylinder walls. The Lambda 3.3L Twin-Turbo V6 in the Kia Stinger GT and Genesis applications particularly benefits from turbo bearing protection given the high operating speeds and the performance-oriented usage patterns of those vehicles.

7. Special Note: Hyundai N and Kia GT Performance Engines

Hyundai's N performance brand has rapidly built a passionate enthusiast following. The N lineup represents Hyundai's most aggressive engineering for the enthusiast buyer, with significant aftermarket support from companies like Stratified Automotive Controls, BSH Speedshop, ECS Tuning, and others.

The current Hyundai N performance lineup

• Elantra N - 276 hp from a high-output 2.0L turbo (Theta II family with Hyundai N-specific tuning), 8-speed wet DCT or 6-speed manual, available with N Grin Boost (overboost) and N Power Shift launch control
• Kona N - 280 hp from the same 2.0L turbo, 8-speed wet DCT only
• Veloster N (production discontinued for 2023+ but still in service) - 250-275 hp depending on year, 6-speed manual or 8-speed wet DCT
• Sonata N Line - uses the Smartstream G2.5 T-GDi (290 hp), 8-speed DCT
• Kia Stinger GT (production discontinued 2024, still in service) - 365 hp from the Lambda 3.3L Twin-Turbo V6, 8-speed automatic, RWD or AWD
• Kia K5 GT - uses the Smartstream G2.5 T-GDi (290 hp), 8-speed wet DCT

Why Cerma is particularly valuable on N performance engines

The N audience uses the performance their cars provide. Track days, autocross, spirited canyon driving, and aggressive daily driving are common. The Theta II 2.0L Turbo used in the Elantra N, Kona N, and Veloster N runs higher boost than other Theta II variants - typically 18-22 psi at peak boost - which translates to higher loads at every wear surface.

For tuned N owners, the value proposition strengthens. Stratified Stage 1 tunes typically push the Theta II 2.0T from stock 276-280 hp to 320-340+ hp. Stage 2 and big turbo builds running 400-500+ wheel horsepower exist in the Hyundai N community. Higher boost = higher cylinder pressures = more wear at every contact surface. Cerma's protection scales with the loads it's protecting against.

Cerma cannot prevent detonation-induced damage on tuned cars (that's a fuel quality and tune quality issue), but it does protect against friction-related wear which is exactly what high-boost performance engines experience most. For Elantra N, Kona N, Veloster N, Stinger GT, and K5 GT owners, Cerma is sound preventive maintenance for engines that aren't easy or cheap to replace.

8. Special Note: Hyundai/Kia Hybrid Systems

Hyundai Motor Group has developed a sophisticated hybrid lineup that competes directly with Toyota's hybrid systems. The current 2026 lineup includes the Tucson Hybrid, Sportage Hybrid, Sonata Hybrid, Santa Fe Hybrid, Sorento Hybrid, Niro, Palisade Hybrid (new for 2026), and the upcoming Telluride Hybrid (2027).

The Hyundai/Kia hybrid architecture

Most Hyundai/Kia hybrids use a parallel hybrid architecture with the gasoline engine, a single electric motor integrated into the transmission, and a small lithium-ion battery. The 2026 Palisade Hybrid uses a more sophisticated dual-motor 2.5L turbo hybrid powertrain producing combined system output around 329 hp - significantly more power than the gas-only Palisade.

The gasoline engines in hybrid applications are typically:

• Smartstream G1.6 T-GDi - Tucson Hybrid, Sportage Hybrid, Niro
• Smartstream G2.0 (Atkinson-cycle variant) - older Sonata Hybrid, older Optima Hybrid
• Smartstream G2.5 T-GDi - Palisade Hybrid (new for 2026), Telluride Hybrid (2027)

Cerma application for hybrids

Use the 2oz Cerma gas treatment ($105.60). The gas engine in hybrid applications is treated like any other Hyundai/Kia gas engine. The hybrid components - electric motor(s), lithium-ion battery, inverter electronics - are sealed systems that don't share oil with the gas engine. Cerma doesn't reach them and doesn't need to.

Why Cerma works particularly well on hybrid gas engines

Like the Honda e:HEV and Toyota i-FORCE MAX hybrid systems we've covered in our other vehicle guides, Hyundai/Kia hybrids experience frequent start-stop cycles as the system transitions between EV mode and hybrid mode. Each restart is a brief moment of low oil pressure when bearing wear is concentrated - exactly when Cerma's mechanical bond provides protection.

Many Tucson Hybrid, Sportage Hybrid, and Sonata Hybrid owners report fuel economy improvements after Cerma application that compound with the existing hybrid efficiency, particularly in city driving where the system transitions between modes most frequently.

The hybrid component warranty (typically 10 years/100,000 miles for the high-voltage components, with longer coverage in some emission-warranty states) is unaffected by Cerma application - Cerma is added to gas engine oil only.

9. Hyundai/Kia Oil Specifications and Dealer-Recommended Oils

Hyundai and Kia typically specify standard SAE viscosity grades meeting current API specifications - they don't use proprietary specifications like BMW's LL-01, Mercedes's MB 229, or VW's 502 00 system. This makes oil compatibility straightforward for Hyundai/Kia owners.

Common Hyundai/Kia oil weights:

• 0W-20 - the workhorse weight for current Smartstream engines including Sonata, Elantra, Tucson, Sorento, K5, and most current applications. Verify your owner's manual.
• 5W-30 - some larger displacement applications, older Lambda V6, some N performance variants. Verify your specific vehicle.
• 5W-40 - some Hyundai N performance applications and Genesis high-performance applications (Genesis G80 sport, GV70 performance variants). Verify owner's manual.

Recommended Hyundai/Kia-compatible oils that work with Cerma:

• Quaker State Ultimate Durability 0W-20 - Hyundai's commonly-stocked dealer oil, widely available
• Mobil 1 Extended Performance 0W-20 - widely available, popular Hyundai/Kia choice
• Castrol Edge 0W-20 - widely available
• Pennzoil Platinum 0W-20 - widely available
• Liqui Moly Special Tec AA 0W-20 - for owners who want a premium European oil
• Valvoline Advanced Full Synthetic 0W-20 - widely available
• Amsoil Signature Series 0W-20 - for owners who want extended drain intervals

Cerma's compatibility statement

Cerma STM-3 is fully compatible with all of these oils and all Hyundai/Kia oil specifications. Cerma does not alter oil viscosity, base oil chemistry, additive package composition, or any specification compliance. The Nano Silicon Carbide ceramic particles bond to engine metal surfaces - they do not interact with the oil's chemical properties.

If your Hyundai or Kia dealer or independent specialist asks about your oil during service, the answer is: standard manufacturer-spec oil (or whatever you actually used). Cerma does not need to be disclosed - it's not part of the oil chemistry, it's bonded to your engine metal.

10. How to Install Cerma in Your Hyundai or Kia

Installation is straightforward whether you DIY at home or have your Hyundai or Kia serviced at the dealer or an independent specialist. Cerma can be added during any oil change.

1. Complete a normal oil change. Drain old oil, replace filter (Hyundai/Kia OEM, Mahle, Mann, Wix, or any quality filter meeting Hyundai/Kia specs), and add fresh oil to your specified weight - typically 0W-20 for current production, 5W-30 for older NA Lambda V6 and some legacy applications, and 5W-40 for some Hyundai N performance applications (verify your owner's manual). For DIY: most Hyundai/Kia 4-cylinder engines hold 4-5 quarts, V6 engines hold 5.5-6 quarts.
2. Pour the Cerma 2oz bottle into your oil fill port. One full bottle for any Hyundai/Kia gas engine - inline-four or V6.
3. Replace the oil cap and start the engine. No warm-up procedure required. Drive normally including spirited driving, family hauling, or N-mode track day. The ceramic begins bonding from the first drive.
4. Drive 3,000 to 5,000 miles on the treated oil. The ceramic particles bond to engine metal during this break-in window. Smartstream T-GDi owners typically notice smoother turbo response within the first 1,000 miles. Lambda V6 and Smartstream V6 owners often notice quieter idle. N performance owners often report smoother high-RPM operation. Hybrid owners may notice smoother gas-electric transitions.
5. Continue normal oil changes at Hyundai/Kia's recommended intervals (typically 7,500 miles for severe service or 10,000 miles for normal service per the owner's manual). The bonded ceramic stays - it doesn't drain out with the oil.

For complete step-by-step installation details with photos and FAQs, see our full installation guide.

11. What to Expect: First 3,000 to 5,000 Miles

First 500 miles:

Engine sound and idle quality often smooth out within the first few hundred miles. Smartstream T-GDi owners (Sonata, Sorento, Telluride, Palisade Hybrid, K5 GT) typically notice particularly smooth turbo response. N performance owners (Elantra N, Kona N, Veloster N) often report smoother high-RPM operation. Lambda V6 owners (older Palisade, Telluride, Stinger GT) often notice subtler smoothing of the V6's already-refined idle. Hybrid owners often notice smoother gas-electric transitions.

500 to 2,000 miles:

Throttle response feels more linear, particularly during transitions in and out of boost on turbocharged Hyundais and Kias. Cold-start operation feels smoother on all gas engines. N performance owners often notice slightly more refined behavior during heavy boost transitions. Genesis owners with the 3.5L Smartstream Twin-Turbo V6 often report quieter operation during cruising. Smartstream G2.5 T-GDi owners may notice slightly improved low-RPM torque delivery.

2,000 to 5,000 miles:

The ceramic bond is largely complete. Friction reduction is at full effect. Many Hyundai/Kia owners report measurable fuel economy improvements during this window - Cerma's customer-reported range is 4-21%* depending on use patterns. For a daily-driver Sonata averaging 31 mpg, even a 5% improvement adds up to meaningful annual fuel savings. For a Palisade or Telluride averaging 22 mpg, the percentage improvement compounds with V6 fuel costs.

5,000+ miles (permanent):

The ceramic matrix is fully bonded. From here on, your Hyundai or Kia has the friction reduction benefit for the life of the engine. Through every future oil change. Every cold start. Every spirited drive. Every road trip. No reapplication, no maintenance, no recurring cost. This is the maintenance approach that supports the 200,000-300,000+ mile ownership horizons typical for owners who plan to keep their vehicle past the famous 10-year/100,000-mile powertrain warranty.

12. Complete Hyundai/Kia Drivetrain Protection

The engine treatment handles the engine. For full Hyundai/Kia protection, three additional Cerma products extend the same ceramic technology to your transmission, differentials, and motor oil.

13. Hyundai/Kia Warranty Considerations (10-Year/100,000-Mile Powertrain)

Hyundai Motor America and Kia America offer some of the most generous warranty coverage in the US automotive market. The standard new-vehicle limited warranty is 5 years/60,000 miles, plus a separate 10-year/100,000-mile powertrain warranty that covers the engine, transmission, and major drivetrain components. Genesis offers a 5-year/60,000-mile new vehicle warranty plus a 10-year/100,000-mile powertrain warranty.

For Theta II 2.4L recall-affected vehicles, Hyundai and Kia issued an extended 10-year/120,000-mile warranty specifically covering Theta II engine replacement.

Magnuson-Moss Warranty Act protection

The federal Magnuson-Moss Warranty Act prohibits Hyundai Motor America, Kia America, and Genesis Motor America from voiding your warranty simply because you used an aftermarket engine treatment. They cannot deny a specific warranty claim unless they can prove the aftermarket product directly caused the failure they're refusing to cover.

Why Cerma is in a particularly strong warranty position:

• EPA ETV certified - independent third-party verification of performance under controlled conditions. Almost no other engine treatment carries this credential.
• Inert ceramic chemistry - Cerma doesn't change oil viscosity, additive package, or filtration. Your Hyundai/Kia continues running on standard manufacturer-spec lubrication.
• Compatible with all dealer service routines - every oil change at Hyundai/Kia's recommended intervals, every dealer service visit, no changes to your routine.
• Does not interact with engine diagnostic systems - the Hyundai/Kia oil monitoring systems read driving patterns, not chemical composition.

The Hyundai/Kia 10-year/100,000-mile powertrain warranty is one of the strongest reasons to apply Cerma early - the warranty period gives you peace of mind for the first decade, and Cerma's permanent ceramic protection covers the engine for decades after the warranty expires.

For a complete breakdown of your aftermarket rights under federal law, see our complete guide to engine treatments and the Magnuson-Moss Warranty Act. Keep your purchase receipt, oil change records, and Cerma's EPA ETV documentation on file as smart practice.

Why Hyundai and Kia Owners Choose Cerma

Frequently Asked Questions